Car-brake



mme A. P. GUE-fav G. P. PIB-LD.

. Car Brake. No; 233,85). Patented N ov. 2,1880.`

RETI.

NAPEYERS. PHDTQLITNOGRAPNER. WASHINGTON. D 7A limitan STM-Es PATENTOrmea.

ALBERT F. GUE AND GEORGE F. FIELD, OF BOSTON, MASSACHUSETTS, ASSIGNORSTO THE AMERICAN STANDARD BRAKE COMPANY, OF CON- CORD, NEW HAMPSHIRE.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 233,850, dated November2, 1880,

Application tiled June 30, 1880. (No model.)

To all whom it may concern Be it known that we, ALBERT F. GUE and GEORGEF. FIELD, of Boston, county of Suffolk, State of Massachusetts, haveinvented an Improvement in Car-Brakes, of which the followingdescription, in connection with the accompanying drawings, is aspecitication.

This invention relates to car-brakes, and is an improvement on patentofthe United States No. 199,286, heretofore granted to us, to whichreference may be had.

In this our present invention we have changed the form of the auxiliarybrake-lever, which is operated by the wire rope, have adapted it to turnhorizontally, and have applied to the said lever mechanism tov push itbackward, so as to quickly release the hold of the usual brakes upon thewheels, the said mechanism being adjustable as to its strength or power.

In this invention the clutch to engage and rotate the chain drum orspool is forced 1n contact with the drum by means of collars recessed tolit the hubs of the clutches, the collars being crowded aga-inst thesaid clutches by means of forked clutch-levers connected withtoggle-levers7 substantially as usual in our patented brake.

By the employment of the collars we are enabled to dispense with thesmall anti-friction rollers employed on the clutch-levers of the patent,making the apparatus stronger and more certain in its operation, and wehave provided means for lubricating the said collars.

Figure l represents an under-side View of a Caboose-car provided withthe improvements the subject of this application 5 Fig. 2, an enlargeddetail of the clutches, and drum, collars, and their actuating devices,partially in section; Fig. 3, a detail of the hand-lever for operatingthe collars and clutches to cause the wire rope to be wound on the drum,and Fig. 4 is a detail, showing the toggle-levers and their connectionwith the lever that moves them.

The brake-levers and shoes for the trucks at both ends of the car arealike, so part of one end of the car is omitted to save space on thedrawings.

The car-trucks, axles, and wheels, brakebeams a a a2, their connectedshoes to bear upon the wheels, the links I) b', short lever b2, wirerope b3, spool b4, toggle-lever c, connected with the clutch-levers c3,the yoke c2, and clutch g are all substantially as common either inordinary freight-cars or in our patent referred to.

The auxiliary brake-lever' c has a vertical pivot, e', so that the leveris permittedto turn horizontally when acted upon by the wire rope overthe pulley e2. This lever c, by the rod c3 and chain c4, operates theusual lever b2, the latter lever being connected, in the usual manner,by rod c5 with a like lever (not shown) at the opposite end of the car.

The lever e has connected with it pushing mechanism to push it back andtake up the slack in the wire rope. This pushing mechanism is composedot' a rod,f, connected with the lever and extended through an ea-r, f, aspring', f2, on the said rod being made adj ustable as to its force bymeans of an adjustingnut, f3.

The clutches g, that act upon the end of the loose drum or spool t4, arekeyed to slide on and rotate with the axle L. These clutches, madeasilanged disks, are forced against the ends of the drum b4 by the collarsh2, placed loosely on the shaft h, the collars being;` recessed at theirfaces to fit the hubs g2 of the clutches.

The collars have loops h3 at each side to receive the forked lower endsof the clutch-levers c3. These collars have hubs recessed, as shown -atl, Fig. 2, to receive packin g and oil, and the drum b4 has packing Z2,oil bein g applied to it by removing the screw or plug m.

These collars are a great improvement upon the rollers employed in ourformer patent to crowd and hold the clutches closely to the drum, arestronger an d more durable and positive. The rollers frequently becomeinjured by blows against them and from various other causes.

The colla-rs are moved by the clutch-levers through the toggle-leversand lever c, the latter lever being actuated, as herein shown, from thehand-lever u and its connected parts a n2 a3.

The lever e has upon it an anti-friction roller, 0, arranged to run onthe curved supportingbar o2, thus keeping the lever e firmly up near thebottom of the car, where it is out ot' the way and less liable to heinjured than when made as an elbow-lever on a horizontal pivot, as inthe patent.

NVe employ wire rope, as it is preferred, but other rope of properstrength would answer instead.

Washers of leather or other substance are placed between the clutchesand drum-heads.

We claim- 1. In a car-brake, the horizontally-vibrating lever c, pivotedat one end, the pulley or sheave e2 for the wire rope at its other end,and the brake-moving link e3, connected with the said lever between itsends, combined with the wire rope, brakes, and connections,substantially as described, between the link e3 and brakes, as and forthe purpose set forth.

2. Thehorizontally-vibrating auxiliary brakelever e, and its roller o,combined with the curved support 02, and with thc pulley c2, and

wire rope to move the lever, substantially as described.

3. ln a car-brake, the horizontally-vibrating brake-lever e, and thewire rope to move it in one direction, combined with the adjustablepushing mechanism to push the said lever backward when the rope isreleased, all substantially as described.

4. In a car-brake-operating mechanism, a system of operating-levers, adrum on the axle, clutches g to engage such drum, and collars h2,sliding; on the axle, and having lubricant-recesses l, for oiling thesame, and connected with the operating-levers and thc clutches, allconstructed and arranged to operate as shown.

In testimony whereof` we have signed our naines to this specificationin' the presence of two subscribing witnesses.

ALBERT F. GUE. GEORGE F. FIELD. Witnesses:

Jos. P. LIVERMORE, N. E. C. WHITNEY.

